Passing variables between view controllers

ios properties uiviewcontroller uistoryboard uistoryboardsegue
Boban picture Boban · Jul 20, 2012 · Viewed 25.7k times · Source

I am using this function to switch between views in Xcode 4.3.

[self performSegueWithIdentifier:@"NextView" sender:self];

I would like to pass some parameters between pages. How can I do that?

Answer

Pfitz picture Pfitz · Jul 20, 2012

After performSegueWithIdentifier:sender: your view controler will call

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

assuming your new view controller has some propertys to set:

if ([[segue identifier] isEqualToString:@"NextView"]) {
    MyViewController *myVC = [segue destinationViewController];
    myVC.propertyToSet = // set your properties here
}

Related questions

What if I want to assign a property to itself?

If I attempt to run the following code: photographer = photographer I get the error: Assigning a property to itself. I want to assign the property to itself to force the photographer didSet block to run. Here's a real-life example: In …

Read More
What's the difference between the atomic and nonatomic attributes?

What do atomic and nonatomic mean in property declarations? @property(nonatomic, retain) UITextField *userName; @property(atomic, retain) UITextField *userName; @property(retain) UITextField *userName; What is the operational difference between these three?

Read More
Objective-C ARC: strong vs retain and weak vs assign

There are two new memory management attributes for properties introduced by ARC, strong and weak. Apart from copy, which is obviously something completely different, are there any differences between strong vs retain and weak vs assign? From my understanding, the …

Read More